[Boost-users] [BGL] Is it possible to control algorithm's behavior by visitor?

Subject: [Boost-users] [BGL] Is it possible to control algorithm's behavior by visitor?
From: Li Ning (Ning.c.Li_at_[hidden])
Date: 2009-05-21 02:04:19

In some complex application, I need to control algorithm's behavior according
to edge's property.

It seems all visitor are used to "visit" the predefined place in a algorithm
but it can not "control".
All functions in visitor has void return type, so it can't give algorithm
anything.
Why there is no STL-like functor which can control algorithm's behavior?
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